M5 - future metro line
New metro line
The M5 is a future standalone metro line with 9 stations that opens in two phases in 2036 and 2045 respectivily.
About the Line
The M5 is intended to provide efficient public transportation to both existing urban areas that currently lack metro service (on Amager) and new urban development areas, including those in Østhavnen (Kløverparken, Refshaleøen, and Lynetteholm).
At the same time, the M5 will increase capacity across the entire metro network and ensure that the Metro can continue to keep pace with rising ridership in the future, particularly on the section across the harbor, where there are already large numbers of people during rush hour.
The first phase of the M5, scheduled to open in 2036, will consist of five underground stations and one elevated station:
- Copenhagen Central Station (underground)
- at Bryggebroen (underground)
- DR Byen (underground)
- at Amagerbrogade S (underground)
- Lergravsparken (underground)
- at Prags Boulevard East (elevated)
The three remaining stations (at Refshaleøen, at Lynetteholm S, and at Lynetteholm N), which will be constructed in Phase 2 with an expected opening in 2045, may be built as either underground or elevated stations; this decision will be made at a later date through the political process.
At Copenhagen Central Station, passengers on the M5 will be able to easily transfer to metro lines M3 and M4, long-distance, regional, and S-trains, as well as buses.
At DR Byen, passengers will be able to transfer between the M1 and M5, while at Lergravsparken, they will be able to transfer between the M2 and M5.
Environmental Impact Assessment of M5
Metroselskabet has assessed the environmental impacts associated with the new M5 metro line.
The Environmental Impact Assessment (EIA) evaluates the project’s environmental impacts during both the construction and operational phases.
Both a comprehensive baseline EIA and a subsequent supplemental EIA have been prepared, describing a number of project changes, including a new location for the terminal shaft on Vesterbrogade as well as optimization of the route and the station at Prags Boulevard East as an elevated station.
Most recently, the supplemental EIA was open for public comment through the end of August 2025.
View the condensed online version of the EIA and the supplemental EIA
Socio-economic analysis of M5
In connection with the preparation of the environmental impact assessment (EIA) for M5, a socio-economic analysis of the possible metro solutions was also conducted—that is, a structured analysis of the socio-economic consequences of constructing the line.
The analysis examined two different route options: the now-discontinued Østerport–Lynetteholm route and the Copenhagen Central Station–Østerport route, referred to in the EIA as the northern and southern solutions, respectively.
Tentativ time schedule and process for M5 (phase 1)
See an overview of the upcoming phases of the M5 project and the expected schedule
CO2 reductions with the M5
The planning of the M5 is underway and the possible future line has been environmentally assessed. In the video you can see where we have already identified possible CO2 reductions of 20 per cent compared to previous lines.
Feasibility study for metro lines
In October 2018, the state and the City of Copenhagen signed an agreement in principle on Lynetteholm, and subsequently it was decided to investigate how the M5 can support sustainable urban development in the new urban development areas in the East Harbour (Kløverparken, Refshaleøen and Lynetteholm).
In August 2020, the feasibility study for Metro Services in the East Harbour was ready with three possible main proposals:
- M5 (purple line): Copenhagen H to Østerport.
- M5 West (orange line): Lynetteholm to Prags Boulevard East (Kløverparken)
- M4 (blue line): Orientkaj to Kløverparken.
More consultations
In August 2022, the City of Copenhagen decided to initiate an Environmental Impact Assessment (EIA) process for the M5. This was initiated with an eight-week idea phase consultation based on two possible alignments, M5 Orange and M5 Purple.
Based on the idea phase consultation, the City of Copenhagen decided in February 2023 that the comprehensive concept design of the possible route and the MKV itself would be based on M5 Purple.
Metroselskabet then began work on the concept design of M5 and the preparation of the MKV. On 20 June 2024, the City of Copenhagen decided to send it out for eight weeks of public consultation together with a perspective analysis with additional stations between Copenhagen Central Station and Østerport.
Optimisations and further process
In the concept design work, the line has been optimised for the benefit of the passenger experience and construction economy, and the City of Copenhagen has therefore decided to prepare a supplementary EIA, which is expected to be completed in the first half of 2025, after which the City of Copenhagen will submit it for consultation and subsequently process the consultation responses politically.